import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int q = sc.nextInt();
        Pack[] packs = new Pack[n];
        long ans = 0;
        int right = 0;
        for (int i = 0; i < n; i++) {
            packs[i] = new Pack(sc.nextInt(), sc.nextInt());
            ans += (long)packs[i].weight * packs[i].position;
            right += packs[i].weight;
        }
        Arrays.sort(packs);
        int left = 0;
        int prev = 0;
        int idx = 0;
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < q; i++) {
            int x = sc.nextInt();
            ans += (long)left * (x - prev);
            while (idx < n && packs[idx].position <= x) {
                ans += ((long)x + prev - packs[idx].position * 2) * packs[idx].weight;
                left += packs[idx].weight;
                right -= packs[idx].weight;
                idx++;
            }
            ans -= (long)right * (x - prev);
            sb.append(ans).append("\n");
            prev = x;
        }
        System.out.print(sb);
    }
    
    static class Pack implements Comparable<Pack> {
        int position;
        int weight;
        
        public Pack(int position, int weight) {
            this.position = position;
            this.weight = weight;
        }
        
        public int compareTo(Pack another) {
            return position - another.position;
        }
    }
    

}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public String next() throws Exception {
        if (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}